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| author | Ian Rogers <irogers@google.com> | 2023-03-28 16:55:43 -0700 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2023-04-04 09:39:56 -0300 |
| commit | 57594454ceb92defaa0707cf29289f0c3c266ede (patch) | |
| tree | 43d67d121ce11ca1096e42017f7682b56746da55 /tools/perf/builtin-top.c | |
| parent | 0b02b47e71fa0e006407efd4f647b0e1336a2e8c (diff) | |
| download | linux-next-57594454ceb92defaa0707cf29289f0c3c266ede.tar.gz | |
perf symbol: Add command line support for addr2line path
Allow addr2line to be set either on the command line or via the
perfconfig file. This doesn't currently work with llvm-addr2line as
the addr2line code emits two things:
1) the address to decode,
2) a bogus ',' value.
The expectation is the bogus value will generate:
??
??:0
that terminates the addr2line reading. However, the output from
llvm-addr2line is a single line with just the input ',' locking up the
addr2line reading that is expecting a second line.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andres Freund <andres@anarazel.de>
Cc: German Gomez <german.gomez@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sandipan Das <sandipan.das@amd.com>
Cc: Tom Rix <trix@redhat.com>
Cc: llvm@lists.linux.dev
Link: https://lore.kernel.org/r/20230328235543.1082207-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-top.c')
| -rw-r--r-- | tools/perf/builtin-top.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index 57a273cd03de..82c6c065830d 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -1439,7 +1439,7 @@ int cmd_top(int argc, const char **argv) }; struct record_opts *opts = &top.record_opts; struct target *target = &opts->target; - const char *disassembler_style = NULL, *objdump_path = NULL; + const char *disassembler_style = NULL, *objdump_path = NULL, *addr2line_path = NULL; const struct option options[] = { OPT_CALLBACK('e', "event", &top.evlist, "event", "event selector. use 'perf list' to list available events", @@ -1527,6 +1527,8 @@ int cmd_top(int argc, const char **argv) OPT_BOOLEAN(0, "no-bpf-event", &top.record_opts.no_bpf_event, "do not record bpf events"), OPT_STRING(0, "objdump", &objdump_path, "path", "objdump binary to use for disassembly and annotations"), + OPT_STRING(0, "addr2line", &addr2line_path, "path", + "addr2line binary to use for line numbers"), OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style", "Specify disassembler style (e.g. -M intel for intel syntax)"), OPT_STRING(0, "prefix", &top.annotation_opts.prefix, "prefix", @@ -1629,7 +1631,11 @@ int cmd_top(int argc, const char **argv) if (!top.annotation_opts.objdump_path) return -ENOMEM; } - + if (addr2line_path) { + symbol_conf.addr2line_path = strdup(addr2line_path); + if (!symbol_conf.addr2line_path) + return -ENOMEM; + } status = symbol__validate_sym_arguments(); if (status) |